0
1
mirror of https://git.sb/baoshuo/OI-codes.git synced 2024-09-20 16:25:25 +00:00
OI-codes/problem/P1096/P1096.py

1 line
28 B
Python
Raw Normal View History

2020-10-15 13:17:38 +00:00
print(2**(int(input())+1)-2)